Di-μ(2)-acetato-1:2κ(2)O:O';2:3κ(2)O:O'-bis-{μ(2)-4,4'-dichloro-2,2'-[2,2-dimethyl-propane-1,3-diylbis(nitrilo-methanylyl-idene)]diphenolato}-1:2κ(6)O,N,N',O':O,O';2:3κ(6)O,O':O,N,N',O'-tricopper(II).

The title compound, [Cu(3)(C(19)H(18)Cl(2)N(2)O(2))(2)(CH(3)CO(2))(2)], is a linear homo-trinuclear Cu(II) complex. The central Cu(II) atom is located on a centre of inversion and has a distorted octa-hedral coordination environment formed by six O atoms from two tetra-dentate Schiff base ligands and two bridging acetate ligands. The coordination geometry of the terminal Cu(II) atom is square-pyramidal with a tetra-dentate ligand in the basal plane. The apical site is occupied by one O atom from an acetate ligand. The acetate-bridged Cu⋯Cu distance is 3.0910 (5) Å. An intra-molecular C-H⋯O hydrogen bond forms an S(6) ring motif. The crystal of the trinuclear complex is stabilized by C-H⋯O hydrogen bonds.